CLAS Physics Database

Measurement E151M528

Experiment: EG4
Year: 2016

Experiment comment:

Final asymmetry results for the ep-> e pi+ (n) channel extracted from CLAS/EG4 data obtained using a longitudinally polarized beam and a longitudinally polarized NH3 target (CAA HS07-02).
Spokesperson: Xiaochao Zheng
Reaction: ep → π+n
Polarization: beam (longitudinal), target (longitudinal)
Quantity: AUL
εL: 0.6685
Q2: 0.2915 GeV2
W: 1325.0 GeV
Ebeam: 1.9889 GeV
ε: 0.8864

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty syst. uncert.
0.65 270.0 -0.1919 0.5409 0.0322
0.65 282.0 1.5168 0.5972 0.0975
0.75 90.0 -0.0944 0.6123 0.0306
0.75 102.0 0.5005 0.5632 0.0429
0.75 258.0 0.7835 0.5749 0.0565
0.75 270.0 -0.4702 0.5378 0.0416
0.75 282.0 1.0113 0.6481 0.0687
0.75 294.0 0.0459 0.4961 0.0301
0.85 78.0 0.7135 0.4926 0.053
0.85 90.0 0.1159 0.5427 0.0308
0.85 102.0 -0.7492 0.476 0.0548
0.85 114.0 -0.2325 0.5701 0.0332
0.85 126.0 -0.2061 0.5945 0.0325
0.85 234.0 -0.1177 0.5353 0.0309
0.85 246.0 0.2137 0.6895 0.0327
0.85 258.0 0.0669 0.47 0.0303
0.85 270.0 -0.0173 0.5581 0.03
0.85 282.0 -0.4874 0.484 0.0423
0.85 294.0 0.5283 0.5958 0.0441
0.85 306.0 0.2254 0.512 0.033
0.95 90.0 0.7913 0.6329 0.0569
0.95 102.0 -0.6176 0.4866 0.0482
0.95 114.0 -0.059 0.6642 0.0302
0.95 126.0 -0.2278 0.5812 0.0331
0.95 246.0 0.6792 0.6224 0.0512
0.95 270.0 0.3223 0.4759 0.0359
0.95 282.0 -0.1648 0.5105 0.0316
0.95 294.0 -0.442 0.4263 0.0404
0.95 306.0 -0.7644 0.4584 0.0555